Whole document tree
Changes Made in V2.4 and V2.4.1
V2.4 has had a patch release, V2.4.1; you should consider all of the following changes together.
V2.4 Changes
The following global and multiple-module changes were made:
All the modules associated with DocBook have been changed to use the new version number in their comment headers and formal public identifiers, as appropriate. The docbook.cat file contains the corresponding updated FPIs.
In docbook.dtd, dbhier.mod, dbpool.mod, and docbook.cat, the entity declarations and corresponding catalog entries for the "rdb" placeholder entities were removed. If users need these, they should declare them and manage their catalog entries themselves, and should not use "Davenport" as the owner identifier for these entities.
In dbhier.mod and dbpool.mod, the order of attributes was changed to put the unique (element-specific) ones first, then the semi-common ones, then the common ones. The placeholder for local attribute extensions is still at the end.
In dbhier.mod and dbpool.mod, many elements now have an OMITTAG scheme of "- O" instead of "- -". In general, series of similar elements don't require an end-tag.
In dbhier.mod and dbpool.mod, the comments documenting the common attributes now provide information on the assumed default values if an attribute value is not supplied.
In dbhier.mod and dbpool.mod, comments were added for planned backwards-incompatible changes in V4.0, and the comments for the V3.0 changes have been made to stand out more. (Search in the DTD files for the string "FUTURE USE", or for "FUTURE USE (Vn.0)" with the relevant version number supplied.)
The following changes were made to docbook.dtd:
Added the BMP, WMF, PCX, and WPG (WordPerfect Graphic) notations and added to notation.class correspondingly.
Fixed the owner identifier in the entity declaration for the "grk4" ISO entity set (Alternative Greek Symbols); it was "ISO 9573-13:1991", but has been changed to "ISO 8879:1986".
The following changes were made to dbhier.dtd:
Modularity and parameterization changes:
The name of the sect1.content entity has been changed to bookcomponent.content to reflect its purpose more accurately.
Added a second redeclaration placeholder to allow redeclaration of the bookcomponent.content entity while letting it retain its reference to divcomponent.mix.
New elements:
Added a new element, SimpleSect, to sect1.content (used in Appendix, Chapter, Preface, PartIntro, and Article) and directly to the content of Sect2 through Sect 5.
Content model changes:
Added SimpleList to indexdivcomponent.mix (used in introductions to indexes).
The content of Book now allows a mixture of zero or more Glossary, Bibliography, and Preface elements before the main content, and a mixture of zero or more Glossary and Bibliography elements after the main content.
BookInfo and DocInfo now allow zero or more graphics, to describe the document's content graphically.
The content of ToC and Index is now allowed to be entirely empty (with no subelements supplied).
The ToCfront, ToCentry, and LoTentry elements now use the new para.char.mix mixture instead of the defunct inline.char.mix mixture (see dbpool.mod).
Chapter and Appendix now allow an optional ToCchap before their main content.
The PrimaryIE, SecondaryIE, TertiaryIE, SeeIE, and SeeAlsoIE elements now contain the new ndxterm.char.mix mixture instead of the defunct inline.char.mix mixture (see dbpool.mod).
RefMiscInfo now contains the docinfo.char.mix mixture instead of just #PCDATA.
RefDescriptor now contains the refname.char.mix mixture instead of just #PCDATA.
The content of RefSynopsisDiv has been expanded to match that of RefSect1.
The following changes were made to dbpool.dtd:
Modularity and parameterization:
Changed the name of the entity containing the common attributes for use on graphics (along with its corresponding "local" entity) from graphic.attrib to graphics.attrib, and changed its corresponding references in Graphic and InlineGraphic accordingly.
New elements:
Added element declarations and corresponding module entities for GUIButton, GUIIcon, GUILabel, GUIMenu, GUIMenuItem, and GUISubmenu and added these elements to cptr.char.class. These are the elements bursted out from Interface. Put in a FUTURE USE comment on Interface for removing its Class attribute in V4.0. Added a declaration for the Accel element and added it to the content models of Interface and the GUI* elements.
Added element declarations and corresponding module entities for KeyCombo and MouseButton and added these elements to cptr.char.class.
Added element declarations and corresponding module entities (and an aggregate module entity) for MenuChoice and Shortcut and added MenuChoice to cptr.char.class. Added a "key action" attribute entity for use in Shortcut and KeyCombo.
Added the new Area, AreaSet, AreaSpec, Callout, CalloutList, GraphicCO, ProgramListingCO, and ScreenCO elements to support callouts. Corresponding parameter entities for their marked-section modules (as well as the aggregate module entities for AreaSpec content and CalloutList content) have been added as well. CalloutList has been added to the list.class class. ProgramListingCO and ScreenCO have been added to the linespecific.class class. GraphicCO has been added to the informal.class class and to the content of ScreenShot.
Added a CO element declaration and corresponding module entity, and added CO to the declarations of the program listing and screen content model entities.
Added the new Attribution element (along with its marked-section module entity); it appears in the content models of BlockQuote and Epigraph.
Added the new FuncPrototype element (along with its marked-section module entity); it appears in the content model of FuncSynopsis.
Added the new Phrase element (along with its marked-section module entity); it appears in the word.class class.
Added the new SBR element (along with its marked-section module entity); it appears in the content of the CmdSynopsis, Arg, and Group elements.
Content model changes:
Moved the SGMLTag and Markup elements to the cptr.char.class entity to allow these elements in the same locations as other technical inlines (such as RefName).
Added #PCDATA to the Address content model, added the Format (linespecific) attribute to it, and added the element to informal.class. (Note that legacy addresses may not work correctly under new linespecific Address assumption!)
Added Email to cptr.char.class and moved its declarations accordingly.
Added the formal.class class to the admon.mix and glossdef.mix mixtures.
Added the formal.class class to the para.mix mixture, and removed it by means of an SGML exclusion from the content models of Footnote, Highlights, Example, and LegalNotice, where paragraphs (now normally allowing formal-object content) can occur. (It was not excluded from Procedure, MsgExplan, MsgText, or BlockQuote, as originally planned, because these elements can legitimately contain formal objects as part of their component.mix content.)
Changed the entire mixture scheme for inlines. Removed the inline.char.mix, synop.char.mix, ssscript.char.mix, and phrase.char.mix mixtures, and added the title.char.mix, ndxterm.char.mix, smallcptr.char.mix, word.char.mix, and docinfo.char.mix mixtures. The following tables show approximately what has changed. (Individual elements that use different mixtures are mentioned below.)
New:
#PCD xref word link cptr base dnfo othr inob (synop) para.char.mix X X X X X X X X X X title.char.mix X X X X X X X X X ndxterm.char.mix X X X X X X X X a cptr.char.mix X X X X X a smallcptr.char.mix X b a word.char.mix X c X X X a docinfo.char.mix X c b X a a. Just InlineGraphic; no InlineEquation. b. Just Replaceable; no other computer terms. c. Just Emphasis and Trademark; no other word elements.
Old:
[X = all, . = some] #PCD xref word link cptr base dnfo othr inob (synop) para.char.mix X X X X X X X X X X inline.char.mix X X X X X X X X synop.char.mix X X X X X X X X cptr.char.mix X X X X X ssscript.char.mix X . X . X X phrase.char.mix X X X X
Changed the programlisting.content entity (used in ProgramListing), the screen.content entity (used in Screen), and the Comment, Seg, Member, Term, LiteralLayout, Synopsis, ProductName, Application, RefEntryTitle, CiteTitle, and Quote elements to use the para.char.mix mixture instead of the defunct inline.char.mix mixture.
Changed the Title, TitleAbbrev, SubTitle, BridgeHead, and SegTitle elements to contain the new title.char.mix mixture instead of the defunct inline.char.mix mixture.
Changed the BiblioMisc, MsgAud, ScreenInfo, Citation, Emphasis, ForeignPhrase, and LineAnnotation elements to contain the para.char.mix mixture instead of just #PCDATA.
Changed the tblexpt entity for exclusions to table content to use the formal.class class (which includes Table) instead of just Table.
Changed the Ackno, Street, POB, Postcode, City, State, Country, Phone, Fax, Email, OtherAddr, ShortAffil, JobTitle, OrgDiv, ArtPageNums, CollabName, AuthorInitials, ConfDates, ConfTitle, ConfNum, ConfSponsor, ContractNum, ContractSponsor, Year, Holder, CorpAuthor, CorpName, Date, Edition, ISBN, ISSN, InvPartNumber, IssueNum, ModeSpec, OrgName, PageNums, Contrib, FirstName, Honorific, Lineage, OtherName, Surname, ProductNumber, PubDate, PublisherName, PubsNumber, ReleaseInfo, RevNumber, RevRemark, SeriesVolNums, and VolumeNum elements to use the new docinfo.char.mix mixture instead of just #PCDATA.
Changed the MsgLevel, MsgOrig, ClassName, ErrorName, ErrorType, KeyCode, KeySym, MediaLabel, ReturnValue, StructField, StructName, Symbol, Token, Type, Markup, and SGMLTag elements to use the new smallcptr.char.mix mixture instead of just #PCDATA.
Changed the Replaceable element to use a series of class entities directly, plus newly containing the Optional and InlineGraphic elements, instead of using the defunct phrase.char.mix mixture.
Changed the Abbrev,Acronym, ManvolNum, FirstTerm, and WordAsWord elements to use the new word.char.mix mixture instead of just #PCDATA.
Changed the Subscript and Superscript elements to use a series of class entities directly, plus newly containing the Replaceable, Symbol, and InlineGraphic elements, instead of using the defunct ssscript.char.mix mixture.
Changed the Trademark element to use a series of class entities directly, plus newly containing the InlineGraphic element, instead of using the cptr.char.mix mixture.
Changed the Primary, Secondary, Tertiary, See, and SeeAlso elements to use the new ndxterm.char.mix mixture instead of the defunct inline.char.mix mixture.
New and changed attributes:
Fixed a bug in Anchor attribute list that allowed it not to have an ID. This was an oversight in the V2.3 modularization.
Added a Spacing attribute on ItemizedList and OrderedList.
Added a Path attribute to Filename element.
Added a new common RevisionFlag attribute.
Added the new common "effectivity" attributes OS, Arch, Vendor, UserLevel, and Revision. Collected the effectivity attributes in their own entity and reorganized that section of entities appropriately.
Added a TermLength attribute to the VariableList element.
Added a Class attribute to the Filename element.
Added a Class attribute to the Symbol element.
Added a Linkend attribute to the FirstTerm element.
Added Linkend and BaseForm attributes to the GlossTerm element.
Added Class attribute values to the SGMLTag element.
V2.4.1 Changes
Following are the changes made to DocBook V2.4 to create V2.4.1:
Substantive changes in docbook.dtd:
Three notation declarations (EQN, PIC, and TBL) have been changed to have null system IDs because the original identifiers were formed as approximate public IDs, not system IDs (and because they contained an ampersand, they were not valid FPIs either). We are investigating whether there are proper formal public IDs for these notations.
Substantive changes in dbpool.mod:
The vendor.attrib entity containing the Vendor effectivity attribute (new in V2.4) has been added to effectivity.attrib in order to make the attribute available for use.
The MenuChoice element (new in V2.4) has been added to cptr.char.class in order to make the element available for use.
The content model of Shortcut (used inside MenuChoice) was changed to match that of the new KeyCombo element, as its original design intended.
The Option element was added to the content model of Group in CmdSynopsis to bring the model up to what the documentation (correctly) describes.
Editorial changes:
The copyright statment has been updated to help ensure continued free access to DocBook files by users.
Spelling in comments was fixed, and comments explaining some attributes were clarified.